linux-kernel - Re: [PATCH v5] ipvs: adjust the debug info in function set_tcp

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Date:   Wed, 30 Sep 2020 08:08:02 +0300 (EEST)
From:   Julian Anastasov <ja@....bg>
To:     "longguang.yue" <bigclouds@....com>
cc:     yuelongguang@...il.com, Wensong Zhang <wensong@...ux-vs.org>,
        Simon Horman <horms@...ge.net.au>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:IPVS" <netdev@...r.kernel.org>,
        "open list:IPVS" <lvs-devel@...r.kernel.org>,
        "open list:NETFILTER" <netfilter-devel@...r.kernel.org>,
        "open list:NETFILTER" <coreteam@...filter.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5] ipvs: adjust the debug info in function
 set_tcp_state


	Hello,

On Mon, 28 Sep 2020, longguang.yue wrote:

> Outputting client,virtual,dst addresses info when tcp state changes,
> which makes the connection debug more clear
> 
> Signed-off-by: longguang.yue <bigclouds@....com>

	OK, v5 can be used instead of fixing v4.

Acked-by: Julian Anastasov <ja@....bg>

> ---

	longguang.yue, at this place after --- you can add info
for changes between versions, eg:
v5: fix indentation

	Use this for other patches, so that we know what is
changed between versions.

>  net/netfilter/ipvs/ip_vs_proto_tcp.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> index dc2e7da2742a..7da51390cea6 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> @@ -539,8 +539,8 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
>  	if (new_state != cp->state) {
>  		struct ip_vs_dest *dest = cp->dest;
>  
> -		IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] %s:%d->"
> -			      "%s:%d state: %s->%s conn->refcnt:%d\n",
> +		IP_VS_DBG_BUF(8, "%s %s [%c%c%c%c] c:%s:%d v:%s:%d "
> +			      "d:%s:%d state: %s->%s conn->refcnt:%d\n",
>  			      pd->pp->name,
>  			      ((state_off == TCP_DIR_OUTPUT) ?
>  			       "output " : "input "),
> @@ -548,10 +548,12 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
>  			      th->fin ? 'F' : '.',
>  			      th->ack ? 'A' : '.',
>  			      th->rst ? 'R' : '.',
> -			      IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
> -			      ntohs(cp->dport),
>  			      IP_VS_DBG_ADDR(cp->af, &cp->caddr),
>  			      ntohs(cp->cport),
> +			      IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
> +			      ntohs(cp->vport),
> +			      IP_VS_DBG_ADDR(cp->daf, &cp->daddr),
> +			      ntohs(cp->dport),
>  			      tcp_state_name(cp->state),
>  			      tcp_state_name(new_state),
>  			      refcount_read(&cp->refcnt));
> -- 
> 2.20.1 (Apple Git-117)

Regards

--
Julian Anastasov <ja@....bg>